Kino no Tabi: The Beautiful World, Aru Tabibito no Nikki Recommendations
They both go on journeys, discover things that they think is unique and such. Kino travels for three days while Tortov Roddle travels according to his diary.
Both series are Very special world, and Travelers diary.
both are about lonely travellers on a journey, that teaches them (in a different or similar ways) the beauty of the world